Results 41 to 50 of about 4,122,240 (226)

Assessing the feasibility of using an irregularly shaped Ta and spherical Ti bimodal powder blend on the powder spreadability process in powder bed fusion systems

, 2023
The cost of additive manufacturing can be reduced if economical non-spherical powders are used. However, current flowability tests are inadequate to determine whether these powders can flow and spread well in powder bed systems.
De Silva, STT, Toh, RJ, Cole, I, Doblin, C, Gulizia, S   +4 more
core   +1 more source

Modelling the thermal behaviour of Ti6Al4V sintered powder bed in electron beam powder bed fusion (EB-PBF) [PDF]

, 2023
The understanding of thermal behaviour of the sintered powder is a crucial feature in the electron beam powder bed fusion (EB- PBF) process. Accurate analyses may help optimise the process, manage smoke sensitivity materials, and give precious inputs ...
Valter Giaretto, Iuliano, Luca, Giaretto, Valter, Campagnoli, Elena, Galati, Manuela, Manuela Galati, Elena Campagnoli, Luca Iuliano   +7 more
core   +1 more source

In situ recrystallization of pure Cu during electron beam powder bed fusion

Additive Manufacturing Letters
Additively manufactured parts often exhibit an anisotropic microstructure characterized by columnar grains resulting from epitaxial growth from the underlying layers in the direction of the thermal gradient, i.e. parallel to the build direction.
Alexandre Margueret, Pierre Lhuissier, Guilhem Martin   +2 more
doaj   +1 more source

A novel and high-efficiency dual-electron gun concurrent preheating additive manufacturing technology: suppressing thermal cracks in non-weldable IN738LC nickel-based superalloy by mitigating temperature fluctuations

Virtual and Physical Prototyping
The process of electron beam powder bed fusion (PBF-EB) is recognised for its efficacy in preparing non-weldable nickel-based superalloys, leveraging high-temperature preheating to minimise stress-related issues.
Yang Li, Hongyu Long, Yurong Wang, Bo Wei, Yuemei Tan, Jun Zhou, Xiaoyu Liang, Lei Zhang, Feng Lin   +8 more
doaj   +1 more source

Additive manufacturing technology for porous metal implant applications and triple minimal surface structures: A review

Bioactive Materials, 2019
Recently, the fabrication methods of orthopedic implants and devices have been greatly developed. Additive manufacturing technology allows the production of complex structures with bio-mimicry features, and has the potential to overcome the limitations ...
Li Yuan, Songlin Ding, Cuie Wen
doaj   +1 more source

Influence of focus offset on the microstructure of an intermetallic γ-TiAl based alloy produced by electron beam powder bed fusion [PDF]

, 2022
It is well established in literature that, when processing intermetallic γ-TiAl components by electron beam powder bed fusion, a banded microstructure is frequently formed because of an inhomogeneous Al distribution since more pronounced evaporation of ...
Wartbichler, R, Reinhold Wartbichler, Daniele Ugues, Giulio Marchese, Ghibaudo, C, Helmut Clemens, Clemens, H, Cristian Ghibaudo, Sara Biamino, Marchese, G, Ugues, D, Biamino, S, S. Biamino, R. Wartbichler, D. Ugues, H. Clemens, C. Ghibaudo, G. Marchese   +17 more
core   +1 more source

Evaluation of the effective thermal conductivity of the unmelted powder particles during the electron beam powder bed fusion (EB-PBF) process [PDF]

, 2023
The thermal conductivity of the unmelted powder particles in an electron beam powder bed fusion (EB-PBF) process is mainly determined by its sintering degree.
Iuliano, Luca, Giovanni Rizza, Rizza, Giovanni, Galati, Manuela, Manuela Galati, Luca Iuliano   +5 more
core   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

Design strategies in developing high-performance additive manufactured components using high-entropy alloy powder blends and pre-alloyed powders: An overview

Journal of Materials Research and Technology
This overview explores the development of high-entropy alloys (HEAs) over the past two decades augmented by increasing prediction and discovery strategies using artificial intelligence (AI) and related subsets such as machine learning (ML) and deep ...
L.E. Murr
doaj   +1 more source